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CVE-2026-106057— patool before 4.0.6 OS Command Injection on Windows via shell_quote_nt

Quick assessment

Affected
wummel patool
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

patool 4.0.6 之前的版本在 Windows 平台上存在一个操作系统命令注入漏洞，原因是 shell_quote_nt 函数未能对 cmd.exe 的特殊字符或归档文件名中嵌入的双引号进行正确转义。攻击者可以提供精心构造的文件名（例如 report&calc.gz），在通过 shell=True 运行单文件格式时使用 patool 执行任意命令，从而以 patool 进程特权执行恶意操作。

CVSS 7.8 · High
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I. Basic Information for CVE-2026-106057

Vulnerability Information
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Vulnerability Title
patool before 4.0.6 OS Command Injection on Windows via shell_quote_nt
Source: CVE Program / CVE List V5
Vulnerability Description
patool before 4.0.6 contains an OS command injection vulnerability on Windows because shell_quote_nt fails to escape cmd.exe metacharacters or embedded double quotes in archive filenames. Attackers can supply crafted filenames like report&calc.gz for single-file formats run with shell=True to execute commands with patool process privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wummel patool 0 ~ 4.0.6 -

II. Public POCs for CVE-2026-106057

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III. Intelligence Information for CVE-2026-106057

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Other References for CVE-2026-106057 (4)

IV. Related Vulnerabilities

Same product: patool
Same vendor: wummel
Same weakness: CWE-78

V. Comments for CVE-2026-106057

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